Air conditioning apparatus



y 1943- A. s. FEINBERG 2,319,119

AIR CONDITIONING APPARATUS Filed May 18, 1942 2 Sheets-Sheet l May 11,1943. A. s. FEINBERG AIR CONDITIONING APPARATUS Filed May 18, 1942 2Sheets-Sheet 2 Vii-I AZSJZVMBEFQ INVENT OR.

Patented May 11, 1943 UNITED STATES PATENT OFFICE AIR CONDITIONINGarrana'ros Archie S. Feinberg, Dallas, 'lex. Application May it, 1942,Serial No. use

9 Claims.

This invention relates to air washing and cooling apparatus, commonlyknown to the art as air conditioning apparatus and it refersparticularly to certain new and useful improvements on such apparatus.

The principal object of the invention is to provide certain improvementson the applicant's machine as described in his co-pendlng applica tion,Serial No. 415,171, in which a plurality of evaporator or filter padsare arranged in a housing at a plurality of relative angles whereby toincrease the effective area thereof without the necessity ofcorrespondingly increasing the size of the cabinet Or housing.

The present invention includes among its outstanding objects theprovision of means to effect distribution of moisture over a wider areaof the filter pads than has been found possible with the means for asimilar purpose set up in the machine described in said co-pendingapplication and whereby the percentage of required saturation of thepads is increased approximately three-fold, thereby insuringeffectiveness approaching the maximum.

Another object of the invention is to provide in an apparatus of thekind specified, a pair of homes in close contiguity to the angularlyrelated pads so that they will receive and uniformly distribute wateralong the upper portions thereof in sufficient quantities to thoroughlysaturate the same and to insure complete eifectiveness of the water, theframes of the pads are so fabricated as to allow the discharge edges ofthe baffles to lie inwardly of the common surfaces of the pads roper;

Stil another object of the invention is to provide, through the novelarrangement of baiiies, as described, a spray device common to all ofthe filter pads, that is to say, a single water spray which serves thepad assembly, keeping them thoroughly saturated through the aid of thebaiiies.

Yet another object of the invention is to provide a novel form of spraydevice consisting of a motor actuated disc of such design andconstruction that, when rapidly rotated, will discharge streams ofliquid directed against its rear face both radially and in the directionof its axis, which is a desirable characteristic in view of the peculiarpositioning of a pair of side filter pads whose walls are disposed atslight angles relative to the path of ale induced into the machine byits blower. Hence the desired inclination of the spray discharge istoward the said pads.

A still further object of the invention is to increase the eflectivenessof the spray disc by providing a plurality of spray heads adapted toimpinge water againtt' the rear face of the disc at a variety of points,the purpose being to insure maximum discharge of water upwardly, in thedirection of the distributing baflles, to be intercepted and carriedthereby toward and along the upper portions of the side filter pads.Simultaneously the spray heads provide that the rear filter pads will bamply supplied with water to effect thorough saturation thereof.

With the foregoing objects as paramount, the invention has furtherreference to certain features of accomplishment to become manifest asthe description proceeds, taken in connection with the accompanyingdrawings wherein:

Figure 1 is a perspective view of an air conditioning machineconstructed according to the present invention.

Figure 2 is a plan view with the top removed and portions broken away.

Figure 3 is a side elevational view of the spray disc, with the drivemotor, pump, and pump motor shown fragmentarily.

Figure 4 is a side elevational view of the machine in vertical section.

Figure 5 is a fragmentary perspective view of one of the side baillesshowing the relationship therewith of the complementary side baiiie.

Figure 6 is a rear view of the spray disc, illustrating generally byarrows the direction taken by the water as it is thrown by the disc, and

Figure 7 is a fragmentary plan view of the disc and one of the sprayheads, designed to show the angle of discharge in the direction of theaxis of the disc.

Continuing with a more detailed description of the drawings, referenceis primarily made to Figure 1 wherein I'll denotes the cabinet orhousing which is a rear view and is of more or less conventional design.Ordinarily, machines for a similar purpose contain but a single filterpad which is water saturated and through which air is drawn by asuitable blower fan to cleanse and cool the same. The present invention,as well as that described in the co-pending application, provides aplurality of such pads disposed at a plurality of angles in the cabinet,the present showing of the pads differing from that of the saidapplication only in that two pads II are herein provided for and whichare also at relative angles, instead of a single rear pad as previouslydescribed. The provision of two rear pads is not compulsory as isclearly apparent but inasmuch as it has been and will be hereinaftershown that the objects of the present improvement are to so control thespray of water that it will always tend to move forward; it is obviousthat the inclination of the walls of the rear pads ii will promote thistendency. There are at least four factors which prominently serve in theallocation of the discharge of the spray disc l2. These are. first: thepeculiar construction of the disc to propel its discharge forwardly ofits plane or in a direction toward its rotative axis. Second: thedivergent walls of the rearmost pads H which reduce the sharpness of theangle around which the water must be conveyed toward the side pads i3.Third: the triangular bames it which intercept the water thrownoutwardly and upwardly by the disc I! and convey the same fordistribution along the upper portions of the side baiiles l3, andfourth: the action of the air itself when induced by the blower fan I!to enter the open rear of the machine, as indicated by the arrows, to bedischarged through the opening it at the front of the cabinet. With allof these factors operating to insure maximum saturation of the pads,combined with the increased area afl'orded by the multiple padarrangement, a most efficient and satisfactory air cooling apparatus isprovided.

As a support for the pads, channel members I! provide skids for the sidepads it while the cross member I! jointly supports the rear pads ii.Both, the rear pads II and the side pads I! are independently removablefor replacement, repair or cleaning, as the case may be.

Referring now to the spraying device, it is to be noted that the motorfor rotating the disc I! is mounted in the water-proof housing It,suspended by means of a bracket Ill which is slidably received inchannels 2| aihxed to the underside of the top of the cabinet Ill. Byreferring to Figure 4, it will become at once apparent that themotor-housing bracket is mounted by sliding the same into the channels2|. Other forms of mounting the motor and spray disc may, of course, beadopted.

The disc I! is mounted on the motor armature shaft 22 to lie between thehousing I! and rear pads ii. A moisture shield 28 embraces the openingin the housing ll through which the shaft 22 passes to prohibit entranceof moisture likely to impair the motor.

The disc I! is so constructed as to provide a circular central elevationa and a perimetrical flange b (Figures 8 and 7). To the rear of the discis a system of spray heads mounted on a pipe 24, rising from the pump 25in the basin 26 and provided with a strainer screen 21. A motor 28operates the pump.

The spray heads are comprised of a crosshead 2! having a length of pipeat one end (Figure 6) and a shorter pipe d at the other, each beingdirected toward the rear face of the disc, as shown and slightly upward.Intermediate the heads 0 and d is yet a shorter head e. The purpose ofthese three heads is to insure a. greater discharge of water from thedisc I: upwardly and at substantially right angles outwardly. toward thetriangular baflle it on either side, which receive the major portion ofthe water thus discharged and convey the same forwardly along the outerfaces of the side pads II. The spray head c is located above the axis ofthe disc due to the fact that the discharge thereof has a shortordistance to travel on the disc than that of the heads d and e before itis propelled ofl. the edge thereof. The spray head it is so oriented onthe disc as to insure sumcient supply of water for the rearmost pads iiand its discharge is augmented by the smaller head a so that asutlicient quantity of water will break through any interference set upby the discharge of spray head c and reach the proper point on the discfor prolection toward the baiile I! at the right in Figure 1.

In Figure '1 it will be noted that the shape of the elevated center a ofthe disc, as it merges into the flange b causes the film of waterthereon to thrust forwardly in the direction desired, that is, at anangle toward the axis of the disc. In other words, the discharge of thedisc is concaved in the direction of the pads.

Referring again to the triangular baiiles ll, Figure 5 shows therelationship of this baflle with one of the side pads II. This bailie isrequired to be triangular in order to conform to the space between thepad and wall of the cabinet Ill. The baflle has a flange which iswelded, bolted or otherwise secured to the inner wall of the cabinet.The bailies are very slightly inclined toward the rear of the cabinet sothat the water collected by the extended ends of the baiiles will beconveyed toward the front of the cabinet. There has been some difficultyin the past in properly distributing the water so that the side padswill be sufficiently saturated. This difllculty is overcome by thebafiies i3 and further, by so constructing the pads and their framesthat a, channel 30 is formed from the front to the rear thereof toreceive the discharge edges of the bailles, as shown. These dischargeedges are provided with spaced triangular notches 3i so as to avoid theformation of a dam along this edge and to insure equal distribution ofwater overflow throughout the lengths of the bai'iles.

It is apparent from Figure 5 particularly that since the discharge edgeof the baffle i3 extends inwardly of the common face of the pad, thewater leaving the baiiie will precipitate downward through the fibrousmaterial of the pad instead of along the outer face and depending uponthe suction of the fan for pulling the moisture into the pad. of course,good results are possible by placing the discharge edges of the baillesit against the faces of the pads with channeling the latter but superiorresults are found to be possible by arranging the pads and bailles in thmanner shown.

The blower fan It is of conventional design, mounted upon the supportingframe 32 and driven through belts 83 by motor 34, Figure 2.

Manifestly, the construction as shown and described is capable of somemodification and such modification as may be construed to fall withinthe scope and meaning of the appended claims is also considered to bewithin the spirit and intent of the invention.

What is claimed is:

1. An evaporative cooler and humidifier including a cabinet having arear air intake and a front air outlet, means to effect movement of airtherethrough, an assembly of filter pads in said cabinet arranged at avariety of angles in the air stream, means disposed behind the rearmostpad assembly and above the midsection thereof for discharging waterradially and forwardly toward said pad assembly to be influenced by saidair stream into the rearmost pads of said assembly, bailies disposed ona substantially horizontal plane, whose discharge edges are contiguouswith the upper portions of the exterior walls of the side pads of theassembly and which are adapted to intercept and convey and distribute aportion of the discharge of said water discharging means onto said sidepads.

2. An evaporative cooler and humidifier including a cabinet having ablower therein creating a draft therethrough, an assembly of filter padsdisposed at a variety of relative angles in said cabinet and throughwhich air is constrained to pass, a substantially horizontal baiile inattendance to each side pad of the assembly, each having an edge incontiguous relation to the outer face thereof and means rearwardly ofand common to all of the pads of the assembly for discharging waterradially and in the direction of said pad assembly, a portion of whichdischarge is intercepted, conveyed and distributed by said baflies alongthe upper portions of said side pads.

3. An evaporator and cooling unit including a cabinet, a fan and afilter pad assembly arranged therein to define an air space in saidcabinet on either side and rearwardly of said assembly, a baiiieconforming to the space on either side of said assembly in the upperportion thereof, the discharge edges of said bailles being in contiguousrelation to the outer surfaces of the side pads of said assembly, a discoperatively disposed above the mid-section of the rearmost mats, meansfor impinging streams of water against the rear face of said disc to bethrown thereby radially outward and towards said pad assembly whereby aportion thereof will be intercepted, conveyed and distributed by saidbaiiies along the upper portions of said side pads.

4. An evaporative cooler and humidifier including a cabinet having afilter pad assembly therein, positioned to define an air space on eitherside and rearwardly of said assembly, a fan disposed inside of saidassembly to constrain air to pass therethrough, a baiiie conforming tothe space intermediate the walls of said cabinet and the side baffles ofsaid assembly and whose inner edges are in contiguous relation to theouter surfaces of said side pads, and means common to all of the pads ofsaid assembly for discharging water radially and forwardly to moistenthe rearmost pads of said assembly and to propel water onto said baiilesto be conveyed thereby for distribtgtion along the upper portions ofsaid side ma 5. Apparatus of the character described comprising acabinet, a fan in said cabinet, a filter pad assembly arranged aboutsaid fan to define a space on either side and rearwardly of said padassembly and through which air is constrained to pass, a disc suspendedfor rotation above the mid-section of the rearmost pad of the assembly,means for rotating said disc, a pump, means for conveying water fromsaid pump and discharging same against the rear face of said disc forradial and forward discharge thereof, and means conforming to the spaceon either side of said pad assembly and in contiguous rotation to theside pads thereof for intercepting a portion of the discharge of saiddisc and conveying the same for distribution along the upper portion ofthe side pads of said assembly.

6. An air cooling apparatus including a cabinet and a plurality ofpervious mats therein, a centrifugal liquid spray device situated abovethe midsection of the foremast of said mats, the said mats beingarranged at a series of relative angles to define forwardly divergentmoisture receiving air chambers between the mat assembly and the sidewalls of said cabinet, and means in contiguous relation with each of theside mats of the assembly to collect and distribute a portion of thedischarge of said spray device whereby said spray device will maintainmoistened condition of said mats collectively.

7. An evaporative cooler and humidifier including an air pervious filterwhose effective area is divided into a central and a pair of sidesections, all of which sections are on a vertical plane and disposed atdifferent relative angles, a common means located above the midsectionof said central section for maintaining moistened condition of saidsection means collecting portions of the discharge of said latter meansfor distribution along the surfaces of said side sections and means forconstraining air to pass through said filter sections.

8. An evaporative cooler and humidifier including an air pervious filterin vertical sections whose side sections are divergent from theintermediate portion thereof to define eflective side air chambers,means disposed above the center of the intermediate position of saidfilter for maintaining moistened condition of said filter, meanscollecting and depositing portions of the discharge of said moisteningmeans on the surfaces of said side sections and means to effect forcedmovement of air through said filter which means is likewise efiective todraw moisture into said chambers and to distribute moisture over theefl'ective area of said filter.

9. An evaporative cooler and humidifier including a pervious filterhaving a central and relatively divergent side sections definingeffective air chambers on the sides of said filter. means to eflectforced movement of air through said filter, means disposed forwardly andabove the middle of the central portion of said filter and in thecurrent of air moving into said filter for producing a substantiallycircular spray of a water and whereby a part of said spray will beinfiuenced by said air current to enter the said air and moisturereceiving chambers for passage through said filter and means alongsidethe side sections of said filter for receiving and distributing portionsof the discharge of said spray means thereon.

ARCHIE S. FEINBERG.

